General matrix: LU, banded

Modules
	gbcon: condition number estimate
	gbtrf: LU triangular factor
	gbtf2: LU triangular factor, level 2
	gbtrs: LU triangular solve using factor
	gbrfs: LU iterative refinement
	gbrfsx: LU iterative refinement, expert
	gbequ: LU equilibration
	gbequb: LU equilibration, power of 2
	laqgb: row/col scale matrix
	la_gbrcond: Skeel condition number estimate
	la_gbrpvgrw: reciprocal pivot growth
	la_gbrfsx_extended: step in gbrfsx

Detailed Description